Sheet metal screws feature a sharp point and coarse thread that cuts its own mating threads into thin metal, plastic, or wood.

Diameter: #7
Length: 1/2"
Material: Steel
Finish: Zinc / White
Head Style: Hex Washer (Slotted|Hex)
Point Type: Speed
Thread Length: Full
Type: Sheet Metal Screw
Application: Gutters
Diameter 3: 11/32"
A sheet metal screw has sharp threads that cut into a material such as sheet metal, plastic, wood, hard rubber, aluminum, and other comparable compositions. Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood.